JOHN W WALLACE, LDO
Medical Practice at Northfield Rd, Cleveland, OH

4078951, Mar 14, 1978

Mar 31, 1976

5/672350

Allen F. Denzine - Chardon OH
Thomas A. Kolakowski - Cleveland OH
John F. Wallace - Shaker Heights OH

University Patents, Inc. - Stamford CT

C22C 1905

148 325

The invention consists of a method of producing a fine equiaxed grain structure (ASTM 2-4) in cast nickel-base superalloys which increases low cycle fatigue lives without detrimental effects on stress rupture properties to temperatures as high as 1800. degree. F. These superalloys are variations of the basic nickel-chromium matrix, hardened by gamma prime [Ni. sub. 3 (Al, Ti)] but with optional additions of cobalt, tungsten, molybdenum, vanadium, columbium, tantalum, boron, zirconium, carbon and hafnium. The invention grain refines these alloys to ASTM 2 to 4 increasing low cycle fatigue life by a factor of 2 to 5 (i. e. life of 700 hours would be increased to 1400 to 3500 hours for a given stress) as a result of the addition of 0. 01% to 0. 2% of a member of the group consisting of boron, zirconium and mixtures thereof to aid heterogeneous nucleation. The alloy is vacuum melted and heated to 250. degree. -400. degree. F.

4209324, Jun 24, 1980

Oct 23, 1978

5/953953

John F. Wallace - Shaker Heights OH
Robert W. Neuman - North Ridgeville OH

Foseco International Limited - Birmingham

C22B 910

75 58

Titanium recovery in the treatment of molten ferrous metal e. g. in a furnace or ladle is improved if use is made of an agent comprising titanium metal and an alkali metal halide or an alkaline earth metal halide.

4330024, May 18, 1982

Aug 27, 1980

6/181753

John F. Wallace - Shaker Heights OH

Steel Founder's Society of America - Rocky River OH

B22D 2700

164 561

The specification describes a method and apparatus for deoxidizing steel. Molten steel is tapped into a ladle in which a preliminary deoxidizer of ferrosilicon or the like is added. From the ladle, the molten steel is poured into a runner which is interconnected with a plurality of molds and a deoxidizer chamber. The molten steel flows toward the molds through the deoxidizer chamber dissolving a final deoxidizer. The final deoxidizer is aluminum or a mixture of aluminum with silicon, calcium, magnesium, or their alloys. The molten steel with the dissolved deoxidizer flows into the molds. The deoxidizer chamber is configured and the final deoxidizer is formulated in such a manner that the final deoxidizer is dissolved at a substantially constant rate by the flowing molten steel.

4045536, Aug 30, 1977

Jul 8, 1975

5/594184

John F. Wallace - Shaker Heights OH

PPG Industries, Inc. - Pittsburgh PA

B22D 2100

264327

Disclosed is a method of preparing castings of bismuth, silicon and silicon alloys characterized by solidification expansion by cooling the molten material below its melting point to form a casting of the material within a suitable container. According to the disclosed method, a tapered liquid core with the smaller end downward and the larger end upward and a portion of the top of the casting, i. e. , a liquid pool on top of the casting, are maintained in a molten state and in liquid communication with each other until the casting is substantially solidified, for example, by keeping the liquid pool on top molten by insulation or by heat addition or by both insulation and heat addition. Thereafter, the core and the top are allowed to solidify, providing a casting substantially free of defects.